1 files changed, 18 insertions, 0 deletions
diff --git a/third_party/abseil-cpp/absl/numeric/int128_test.cc b/third_party/abseil-cpp/absl/numeric/int128_test.cc
index bc86c714ac..c445d89a99 100644
--- a/third_party/abseil-cpp/absl/numeric/int128_test.cc
+++ b/third_party/abseil-cpp/absl/numeric/int128_test.cc
@@ -226,6 +226,11 @@ TEST(Uint128, AllTests) {
   EXPECT_EQ(test >>= 1, one);
   EXPECT_EQ(test <<= 1, two);
 
+  EXPECT_EQ(big, +big);
+  EXPECT_EQ(two, +two);
+  EXPECT_EQ(absl::Uint128Max(), +absl::Uint128Max());
+  EXPECT_EQ(zero, +zero);
+
   EXPECT_EQ(big, -(-big));
   EXPECT_EQ(two, -((-one) - 1));
   EXPECT_EQ(absl::Uint128Max(), -one);
@@ -769,6 +774,19 @@ TEST(Int128, ComparisonTest) {
   }
 }
 
+TEST(Int128, UnaryPlusTest) {
+  int64_t values64[] = {0, 1, 12345, 0x4000000000000000,
+                        std::numeric_limits<int64_t>::max()};
+  for (int64_t value : values64) {
+    SCOPED_TRACE(::testing::Message() << "value = " << value);
+
+    EXPECT_EQ(absl::int128(value), +absl::int128(value));
+    EXPECT_EQ(absl::int128(-value), +absl::int128(-value));
+    EXPECT_EQ(absl::MakeInt128(value, 0), +absl::MakeInt128(value, 0));
+    EXPECT_EQ(absl::MakeInt128(-value, 0), +absl::MakeInt128(-value, 0));
+  }
+}
+
 TEST(Int128, UnaryNegationTest) {
   int64_t values64[] = {0, 1, 12345, 0x4000000000000000,
                         std::numeric_limits<int64_t>::max()};